ffmpeg | branch: master | Michael Niedermayer <michae...@gmx.at> | Tue Mar 10 03:32:38 2015 +0100| [3170b33e57b2f29c0adf77ece46b324494b81dd1] | committer: Michael Niedermayer
avfilter/vf_fftfilt: increase RDFT length by 10% This fixes artifacts when the dimensions are exact powers of 2 Signed-off-by: Michael Niedermayer <michae...@gmx.at> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=3170b33e57b2f29c0adf77ece46b324494b81dd1 --- libavfilter/vf_fftfilt.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavfilter/vf_fftfilt.c b/libavfilter/vf_fftfilt.c index 86acc62..dff279c 100644 --- a/libavfilter/vf_fftfilt.c +++ b/libavfilter/vf_fftfilt.c @@ -208,14 +208,14 @@ static int config_props(AVFilterLink *inlink) int h = inlink->h; /* RDFT - Array initialization for Horizontal pass*/ - for (rdft_hbits = 1; 1 << rdft_hbits < w; rdft_hbits++); + for (rdft_hbits = 1; 1 << rdft_hbits < w*10/9; rdft_hbits++); fftfilt->rdft_hbits[i] = rdft_hbits; fftfilt->rdft_hlen[i] = 1 << rdft_hbits; if (!(fftfilt->rdft_hdata[i] = av_malloc_array(h, fftfilt->rdft_hlen[i] * sizeof(FFTSample)))) return AVERROR(ENOMEM); /* RDFT - Array initialization for Vertical pass*/ - for (rdft_vbits = 1; 1 << rdft_vbits < h; rdft_vbits++); + for (rdft_vbits = 1; 1 << rdft_vbits < h*10/9; rdft_vbits++); fftfilt->rdft_vbits[i] = rdft_vbits; fftfilt->rdft_vlen[i] = 1 << rdft_vbits; if (!(fftfilt->rdft_vdata[i] = av_malloc_array(fftfilt->rdft_hlen[i], fftfilt->rdft_vlen[i] * sizeof(FFTSample)))) _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
